I met an Amish lady recently and we started talking about quilting. I have a problem when I put the backing on, even if it fits when it's layed out it's to big when I stitch it. She tried to explain that there are other ways to join them together. She said you can tie them every so many inches around the edges instead of stitching. I just don't understand it. How can you wash them if there not stitched together.